Carbon steel flange plate

Abstract

The utility model relates to the technical field of carbon steel flange plates, and provides a carbon steel flange plate which is characterized in that a force application block is fixedly connected to a plate body, two sides of the plate body are divided into a first mounting end face and a second mounting end face, a fixed clamping block is arranged on the first mounting end face, and the fixed clamping block is an annular bulge which is circumferentially arranged around the axis of the plate body; the outer side wall of the fixing clamping block is fixedly connected with a positioning block, a fixing clamping groove is formed in the second installation end face, a positioning groove with the same shape as the positioning block is formed in the outer side wall of the fixing clamping groove, a sealing insertion block is arranged on the fixing clamping block and is an annular protrusion arranged in the circumferential direction around the axis of the disc body, and a sealing insertion groove is formed in one side of the fixing clamping groove. By means of the technical scheme, force can be conveniently applied to the flange plate to adjust the direction of the flange plate when the flange plate is installed, operation is fast and labor-saving, and installation efficiency is high.

Description

TECHNICAL FIELD

[0001] The utility model relates to carbon steel flange plate technical field, specifically, and relates to a carbon steel flange plate. BACKGROUND

[0002] Flange plate is also called flange or lug, is very common in pipeline engineering, is the part of connecting pipe and pipe with each other, usually connected to the pipe end, because of its high physical strength, heat resistance, high pressure resistance and strong corrosion resistance, is widely used in petroleum and natural gas, oil refining and cracking device fields. Flange plate is generally used in pairs, and the disc body is provided with a hole, and the pipe is tightly connected through the fastening bolt.

[0003] When used in the above field, a large-diameter carbon steel flange plate is usually required, which is heavy, and the traditional carbon steel flange plate does not have an auxiliary positioning structure. When connecting and fastening the pipe, the worker's head needs to be close to the pipe near the flange hole. One side observes the alignment of the two flange holes, and the other side rotates the flange plate by hand or manipulates the clamping mechanical arm. In the case of complex pipe, it may be difficult to observe closely.

[0004] In addition, in order to ensure that the pipe has good air tightness after installation, the flange plate is usually designed as a smooth cylinder, and there is no suitable force point on the surface of the flange plate. When installing small and medium-sized flange plates manually, it is easy to slip and not to force when rotating the flange plate manually, which is time-consuming and laborious. If a mechanical arm is used to install a large flange plate, the mechanical arm can control the flange plate to a certain extent and avoid slipping, but the large clamping force acts on the surface of the flange plate and the pipe, which can easily cause deformation or damage of the flange plate or the pipe, and there is a safety hazard. UTILITY MODEL CONTENTS

[0005] The utility model provides a kind of carbon steel flange plate, solve the problem that there is no suitable force point when adjusting flange plate hole position, improve the assembly efficiency of flange plate, reduce safety hazard.

[0006] The technical scheme of the utility model is as follows:

[0007] The utility model provides a carbon steel flange plate, including the disc body, be equipped with a plurality of flange eye on the disc body, the outer lateral wall of disc body is fixedly connected with the force block for dividing the disc body both sides into first installation end surface and second installation end surface, the first installation end surface is equipped with fixed clamping block away from the second installation end surface side, the fixed clamping block is coaxial with disc body and is arranged, the outer lateral wall of fixed clamping block is fixedly connected with the locating block, the second installation end surface is equipped with fixed clamping groove away from the first installation end surface side, the shape of fixed clamping groove is same with the fixed clamping block, the outer lateral wall of fixed clamping groove is equipped with the locating recess same with the shape of locating block, the fixed clamping block is equipped with ring structure's sealing insert block away from the second installation end surface side, the sealing insert block is coaxial with disc body and is arranged, the fixed clamping groove is equipped with sealing insert groove away from the first installation end surface side, the shape of sealing insert groove is same with the shape of sealing insert block.

[0008] Further, the sealing insert groove is fixedly connected with the annular elastic sealing washer on the side close to the first installation end face.

[0009] Further, the sealing insert block is provided with a first inclined surface on the side away from the axis of the disc body, and the sealing insert groove is provided with a second inclined surface on the side away from the center of the disc body, the first inclined surface and the second inclined surface are both circumferentially arranged around the axis of the disc body, and the first inclined surface and the second inclined surface are in abutment.

[0010] Further, the force block is provided with a first through hole on the side away from the disc body, and the diameter of the first through hole is same with the diameter of the flange hole.

[0011] Further, the first through hole is a threaded hole, the first through hole is communicated with the flange hole, and a reinforcing bolt is arranged at the first through hole.

[0012] Further, the outer surface of the force block is provided with anti-skid lines, and the anti-skid lines are stripe-shaped convex patterns.

[0013] Further, the number of the force blocks is same with the number of the flange holes, and the force blocks are circumferentially arranged around the axis of the disc body.

[0014] Further, the bottom of the locating recess is provided with an arc-shaped locating sliding groove, and the two side groove walls of the locating sliding groove are arc-shaped, and the locating sliding groove is circumferentially arranged around the axis of the disc body.

[0015] Further, the central angle formed by the groove wall of the locating sliding groove is larger than the central angle formed by the adjacent two flange holes and the axis of the disc body.

[0016] The working principle and beneficial effects of the utility model are as follows:

[0017] In the installation pipeline, first two identical flange plate is respectively inserted into the two sections of pipeline to be installed and welded, the staff manually or manipulates the mechanical arm to rotate the flange plate and pipeline through the force block on any flange plate, the positioning block on the disc body can be observed on the side of the two flange plates, the positioning block of one of the flange plates is aligned with the positioning groove of the other flange plate, the first inclined surface of the sealing plug block of one flange plate is attached to the second inclined surface of the sealing slot of the other flange plate, and the two flange plates are tightened, so that the two flange plate shafts are coincided.

[0018] After the two flange plates are coincided, the direction of any flange plate is rotated again through the force block, so that the positioning block of one of the flange plates slides into the positioning sliding groove of the other flange plate; since the number of flange holes is the same as the number of force blocks and they are all arranged circumferentially around the disc body shaft, when the force blocks on the outside of the two flange plates are aligned, the flange holes are automatically aligned, and the staff can fix the two flange plates through the reinforcing bolts.

[0019] When the reinforcing bolts are tightened, the sealing plug block of one of the flange plates presses the elastic sealing gasket at the bottom of the sealing slot of the other flange plate, so that the pipeline has good air tightness, then the remaining reinforcing bolts in the first through hole of the other flange plate are fastened, so that the reinforcing bolts in the flange holes are reinforced again from the side, and the connection strength of the pipeline is improved, which is fast and labor-saving. BRIEF DESCRIPTION OF DRAWINGS

[0020] The utility model will be explained further in detail in combination with the drawings and specific embodiment.

[0021] Figure 1 It is a partial structure diagram of this embodiment Figure 1 ;

[0022] Figure 2 It is a partial structure diagram of this embodiment Figure 2 ;

[0023] Figure 3 It is a front view cross-sectional view of this embodiment

[0024] Figure 4 It is a partial enlarged view of A in this embodiment.

[0025] In the drawing: 1, first installation end face; 101, fixed clamping block; 102, positioning block; 103, sealing plug block; 104, flange hole; 105, force block; 106, first through hole; 107, first inclined surface; 2, second installation end face; 201, fixed clamping groove; 202, sealing slot; 203, positioning sliding groove; 204, elastic sealing gasket; 205, positioning groove; 206, second inclined surface; 3, disc body. PREFERRED EMBODIMENT

[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below in combination with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor are involved in the protection scope of the utility model.

[0027] Embodiment one:

[0028] Reference Figures 1-4 A carbon steel flange plate, comprising a disc body 3, a plurality of flange holes 104 are arranged on the disc body 3, according to the installation direction of the flange plate, the left side of the disc body 3 is a first installation end face 1, and the right side is a second installation end face 2, a plurality of force applying blocks 105 are arranged on the side wall of the disc body 3, a first through hole 106 is arranged at the upper end face of the force applying block 105, the hole diameter of the first through hole 106 is consistent with that of the flange hole 104, the first through hole 106 can be a threaded hole, used for placing reinforcing bolts required for fastening the flange plate, without the need to find another one. Anti-skid lines in the form of striped protrusions are arranged on the outer surface of the force applying block 105, which can increase the friction.

[0029] The number of the force applying blocks 105 should be the same as that of the flange holes 104, and both are arranged circumferentially around the axis of the disc body 3, so that when two flange plates are connected and fixed, the force applying blocks 105 are aligned to realize the synchronous alignment of the flange holes 104, the first through hole 106 on the force applying block 105 is communicated with the flange hole 104, so that the reinforcing bolts in the flange hole 104 can be reinforced from the side by the reinforcing bolts, improving the connection strength of the pipeline.

[0030] A fixed clamping block 101 is arranged on the left side of the first installation end face 1, the fixed clamping block 101 is arranged circumferentially around the axis of the disc body 3, forming a ring structure, and a positioning block 102 is arranged on the outer side wall of the fixed clamping block 101. A fixed clamping groove 201 with the same shape as the fixed clamping block 101 is arranged on the left side of the second installation end face 2, and a positioning recess 205 with the same shape as the positioning block 102 is arranged on the outer side wall of the fixed clamping groove 201, when two flange plates with the same structure are used, the fixed clamping block 101 and the positioning block 102 of one flange plate can be clamped with the fixed clamping groove 201 and the positioning recess 205 of the other flange plate respectively.

[0031] Similarly, a sealing plug block 103 in the form of a ring structure is arranged on the left side of the fixed clamping block 101, the sealing plug block 103 is coaxially arranged with the disc body 3, and a sealing plug groove 202 with the same shape as the sealing plug block 103 is arranged on the left side of the fixed clamping groove 201, a ring structure elastic sealing gasket 204 is fixedly connected to the bottom of the sealing plug groove 202, and the sealing plug block 103 can press the elastic sealing gasket 204 and the sealing plug groove 202 to abut, so as to ensure the air tightness of the pipeline.

[0032] In order to have better buffering of the pipeline during alignment, the sealing plug 103 is provided with a first inclined surface 107 and a second inclined surface 206 away from the axis of the disc body 3, the first inclined surface 107 and the second inclined surface 206 are circumferentially arranged around the axis of the disc body 3, and the first inclined surface 107 and the second inclined surface 206 can be fitted, when installing the pipeline, the worker only needs to fit the first inclined surface 107 and the second inclined surface 206, and align the two flanges along the two inclined surfaces, and the inclined surface can drive the pipeline with the flange to align.

[0033] Secondly, the bottom of the positioning groove 205 is also provided with a positioning sliding groove 203 circumferentially arranged around the axis of the disc body 3, the groove wall of the positioning sliding groove 203 is arc-shaped, the positioning sliding groove 203 can accommodate the positioning block 102 to slide therein, so that the two flanges can still rotate after being clamped by the positioning block 102 and the positioning groove 205, facilitating subsequent alignment of the flange hole 104. The central angle formed by the groove wall arc of the positioning sliding groove 203 is greater than the central angle formed by the adjacent two flange holes 104 and the axis of the disc body 3, so as to ensure sufficient operation space when aligning the hole.

[0034] In specific use, if the first-welding and then-hole-aligning mode is adopted for connection, first, two structurally identical flanges are welded to the two ends of the pipeline to be fixed, the first mounting end surface 1 of one flange is close to the second mounting end surface 2 of the other flange, the force block 105 on any flange is clamped by hand or a mechanical arm, any flange is rotated and the pipeline is rotated, the positioning groove 205 of the flange is roughly aligned with the positioning block 102 of the other flange, the two flanges are pushed to be close to each other, at this time, the first inclined surface of one flange contacts the second inclined surface of the other flange, the flanges are further closed by the force of the inclined surface, the axes of the two pipelines are aligned, and the positioning block 102 is clamped into the positioning groove 205.

[0035] After the two flanges are closed, the flange force blocks 105 are aligned by rotating the flanges again through the force blocks 105, since the number of the force blocks 105 is consistent with the number of the flange holes 104, the flange holes 104 are also aligned at this time, finally, the worker removes the reinforcing bolts reserved in the first through hole 106 of the force block 105 to tighten the flange holes 104, the sealing plug 103 of one flange presses the elastic sealing gasket 204 in the sealing slot 202 of the other flange, and then the reinforcing bolts in the first through hole 106 of the other flange are tightened, so as to realize secondary reinforcement of the reinforcing bolts in the flange holes 104 from the side.

[0036] If the two flanges are connected by the method of welding after positioning, the two flanges with the same structure are respectively sleeved on the two ends of the pipeline to be fixed, the first mounting end face 1 of one flange is close to the second mounting end face 2 of the other flange, the force block 105 on any flange is clamped by hand or a mechanical arm, any flange is rotated, the positioning groove 205 of the flange is roughly aligned with the positioning block 102 of the other flange, the two flanges are pushed to be close to each other, at this time, the first inclined surface of one flange is in contact with the second inclined surface of the other flange, the flanges are continuously closed by the force of the inclined surface, the axes of the two pipelines are aligned, and the positioning block 102 is clamped into the positioning groove 205.

[0037] After the two flanges are closed, the flanges are rotated again by the force block 105 to align the force blocks 105 of the two flanges, since the number of the force blocks 105 is consistent with the number of the flange holes 104, the flange holes 104 are also synchronized at this time, the two flanges and the pipeline are welded by the workers, finally, the reinforcing bolts reserved in the first through hole 106 of the force block 105 are removed to tighten the flange holes 104, the sealing block 103 of one flange is pressed against the elastic sealing ring 204 in the sealing slot 202 of the other flange, then the reinforcing bolts in the first through hole 106 of the other flange are tightened, the reinforcing bolts in the flange holes 104 are secondly reinforced from the side, the connection strength of the pipeline is enhanced, the whole process is quick and labor-saving, and the installation efficiency during the pipeline connection can be effectively improved.

[0038] The above is only a preferred embodiment of the utility model, and is not used to limit the utility model, any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A carbon steel flange plate comprising a disc body (3) provided with a plurality of flange holes (104), characterized in that, The outer side wall of the disc body (3) is fixedly connected with a force applying block (105) for dividing the two sides of the disc body (3) into a first mounting end face (1) and a second mounting end face (2), the first mounting end face (1) is provided with a fixed clamping block (101) away from the second mounting end face (2), the fixed clamping block (101) is an annular structure and is coaxially arranged with the disc body (3), the outer side wall of the fixed clamping block (101) is fixedly connected with a positioning block (102), the second mounting end face (2) is provided with a fixed clamping groove (201) away from the first mounting end face (1), the fixed clamping groove (201) is the same in shape as the fixed clamping block (101), the outer side wall of the fixed clamping groove (201) is provided with a positioning groove (205) which is the same in shape as the positioning block (102), the fixed clamping block (101) is provided with an annular sealing plug (103) away from the second mounting end face (2), the sealing plug (103) is coaxially arranged with the disc body (3), the fixed clamping groove (201) is provided with a sealing slot (202) away from the first mounting end face (1), and the sealing slot (202) is the same in shape as the sealing plug (103).

2. A carbon steel flange as claimed in claim 1, wherein, The sealing slot (202) is fixedly connected with an annular elastic sealing gasket (204) away from the first mounting end face (1).

3. A carbon steel flange as claimed in claim 1, wherein, The sealing plug (103) is provided with a first inclined surface (107) away from the axis of the disc body (3), the sealing slot (202) is provided with a second inclined surface (206) away from the center of the disc body (3), the first inclined surface (107) and the second inclined surface (206) are both circumferentially arranged around the axis of the disc body (3), and the first inclined surface (107) and the second inclined surface (206) are in abutment.

4. A carbon steel flange as claimed in claim 1, wherein, The force applying block (105) is provided with a first through hole (106) away from the disc body (3), and the diameter of the first through hole (106) is the same as that of the flange eye (104).

5. A carbon steel flange as claimed in claim 1, wherein, The first through hole (106) is a threaded hole, the first through hole (106) is in communication with the flange eye (104), and a reinforcing bolt is arranged at the first through hole (106).

6. A carbon steel flange as claimed in claim 4, wherein, The outer surface of the force applying block (105) is provided with an anti-skid pattern which is a stripe-shaped convex.

7. A carbon steel flange as claimed in claim 4, wherein, The number of the force applying blocks (105) is the same as that of the flange eyes (104), and the force applying blocks (105) are circumferentially arranged around the axis of the disc body (3).

8. A carbon steel flange as claimed in claim 1, wherein, The bottom of the positioning groove (205) is provided with a positioning sliding groove (203) with arc-shaped side walls, and the positioning sliding groove (203) is circumferentially arranged around the axis of the disc body (3).

9. A carbon steel flange as claimed in claim 8, wherein, The circular central angle formed by the arc of the side wall of the positioning sliding groove (203) is greater than the circular central angle formed by two adjacent flange eyes (104) and the axis of the disc body (3).

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